Make a statement with this luxurious, high performance glass chair mat designed for optimum clarity featuring patented polished edges and radius corners. Extremely durable, 1/4" thick, fully tempered glass mat suitable for combined user and chair weights up to 1000 lbs. Nonstudded bottom surface for use on all pile carpets and hard floor surfaces. Exceptional clarity allows you to show off any flooring, including carpet, tile, hardwood and area rugs. Provides maximum, long-lasting durability to protect flooring from caster wear, spills and heavy traffic. Smooth, easy-glide rolling surface resists indentations providing effortless chair movement and helps reduce back stress. Scratch-resistant surface cleans easily with any glass cleaner.